Crop Video
Trim unwanted edges from your video frame or reframe it to a new aspect ratio instantly. Free, private, no signup — it all works in your browser.
Everything runs inside your browser — your file is never uploaded to a server.
First run downloads the media engine (~30 MB) once, then it stays cached.
About this tool
This tool lets you crop a video to a specific rectangle, removing black bars, unwanted edges, or reshaping the frame to a new aspect ratio like a square for social media or a tall 9:16 for stories and reels. You draw or type the exact crop area over a preview frame, and the tool processes the entire clip locally using FFmpeg compiled to WebAssembly, so the footage never leaves your browser tab. Because cropping is applied to every frame consistently, the result plays back smoothly with no drift or misalignment across the clip's duration. It supports common formats such as MP4, MOV, WebM and AVI, and works whether you're removing a sliver of unwanted background, converting a landscape clip into a portrait format for mobile viewing, or zooming in on a specific part of the frame. Since everything runs on your device, there's no upload wait even for long or high-resolution source files.
How to use this tool
1. Upload your video
Drag and drop the clip you want to crop into the tool.
2. Set the crop area
Drag the crop box over the preview or enter exact coordinates.
3. Preview the result
Check that the cropped frame keeps everything you want.
4. Download the cropped video
Save the reframed clip to your device.
Why use this tool
Reframing footage for a different platform or removing distracting elements from the edge of a shot usually means opening a heavyweight video editor. This tool crops a video precisely in seconds directly in the browser, with an accurate live preview and no software installation, which is ideal for quickly adapting landscape footage for vertical social feeds or removing black bars from a scanned or letterboxed clip.
Tips & best practices
- Crop to a 9:16 ratio when repurposing landscape footage for Instagram Reels or TikTok.
- Use the live preview to double-check nothing important sits right at the crop edge before processing.
- Crop out black bars first if your source video has letterboxing, then adjust aspect ratio separately if needed.
Common use cases
- Converting landscape video into a vertical format for mobile stories and reels.
- Removing black letterbox bars from an old widescreen recording.
- Cutting an unwanted watermark or logo off the edge of a clip.
- Zooming into a specific subject by cropping tightly around it.
- Reframing a webcam recording to a square format for a profile video.
Frequently asked questions
Can I crop a video to a specific aspect ratio like 1:1 or 9:16?
Yes, you can set custom crop dimensions or pick common aspect ratio presets, and the tool calculates the matching crop area automatically.
Will cropping reduce the video's resolution?
The output resolution equals the cropped area's size, so cropping to a smaller region naturally produces a smaller-resolution video than the original.
Does the crop apply the same way to the whole video?
Yes, the same crop rectangle is applied consistently to every frame of the clip, so there's no shifting or drifting throughout playback.
Can I preview the crop before processing the full video?
Yes, a live preview frame shows exactly what will be kept and what will be removed before you confirm the crop.
Is cropping done locally or does the video get uploaded?
Cropping runs entirely inside your browser using WebAssembly, so the video file never gets uploaded anywhere.
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